Consultation with a dermatologist
The dermatology class, including application of the test material, lasts about 20 minutes. Using a plaster, the test material is taped to the back. It rarely causes discomfort.
After the consultation
When the patch with the test material is on, you can not wash your back or sunbathe. Sweating from physical activity can cause the patch to loosen and should be avoided.
Avoid scratching the patch and wearing a top at night to prevent it from coming loose during sleep.
A new consultation is arranged with a dermatologist to read the test after 3 days. When the test has been read, you will receive information about whether allergies have been detected or not and possibly which product or products you should avoid coming into contact with and what kind of treatment is recommended.
Possible side effects
Epicutaneous tests rarely cause complications. In some cases, the reaction to the test material itself can cause a severe rash that can be lubricated with strong local steroids to reduce itching.
About contact dermatitis
Contact dermatitis is an inflammation of the skin that is triggered by either allergies or irritants. The area exposed to the irritant becomes red, swollen, gets blisters and possibly ulceration. It causes symptoms such as itching, burning and cracked skin. Most people get it on their hands, but it can also occur elsewhere on the body. About 5% suffer from contact dermatitis during their lifetime.
There are two types of contact dermatitis: contact allergic eczema and toxic eczema.
Contact dermatitis is a delayed type of hypersensitivity and the symptoms do not appear until 24 to 72 hours after exposure to the allergen and are often severely limited and improve within a few days.
In acute toxic eczema, the rash appears within minutes to hours after exposure to the irritating substance; if there is a mild irritation, the reaction may appear as late as days to weeks after exposure. The eczema is often more unclear in the delimitation and often takes weeks to get better.
The trigger for contact dermatitis can be a wide range of things. Some examples are nickel, cobalt and chromium, rubber chemicals, perfumes and plants. Toxic variant is often occupationally relevant and can be triggered by various chemicals and liquids.